United States · 1991–2020 normal
Portola Hills in
May.
Typical May weather in Portola Hills: 26°C by day, 12.3°C at night, 10 mm of rain over 1.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high26°C
Typical low12.3°C
Rain10 mm
Wet days1.6
Comfort score 89 this month (November leads the year at 91). Daylight is calculated as 13 h 53 from latitude 33.68°. Open-water sea temperature is 17.0°C (23 km from the place centre).
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5384452
- NOAA station
- USC00044303 · IRVINE RCH
- Station distance
- 9.6 km from the place centre
- Coverage
- Good coverage · 17 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.